210133140 has 48 divisors (see below), whose sum is σ = 672427392. Its totient is φ = 48030336.

The previous prime is 210133087. The next prime is 210133151. The reversal of 210133140 is 41331012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249739 + ... + 250578.

It is an arithmetic number, because the mean of its divisors is an integer number (14008904).

Almost surely, 2^210133140 is an apocalyptic number.

210133140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210133140 is an abundant number, since it is smaller than the sum of its proper divisors (462294252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210133140 is a wasteful number, since it uses less digits than its factorization.

210133140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500336 (or 500334 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 210133140 is about 14495.9697847367. The cubic root of 210133140 is about 594.5177836230.

Adding to 210133140 its reverse (41331012), we get a palindrome (251464152).

The spelling of 210133140 in words is "two hundred ten million, one hundred thirty-three thousand, one hundred forty".